Once the holes were dug, the tubes inserted, and concrete poured it was time to finish up the foundation. We added a plastic barrier, and covered it with gravel. This is really just to keep it dry for when I have to crawl under the building to work.
The concrete was still a bit fresh, so we blocked it up to support the weight of the building for delivery. It was quite an undertaking, but with plenty of teamwork it all came together.